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<p>Reports expressions whose value is not used.</p>

<p>Expressions that have side-effects or divert the control flow are not reported.</p>

<p><b>Example:</b></p>
<pre><code>
  def test(): Int = {
    3 // unused
    3
  }
</code></pre>
<p>After the quick-fix is applied:</p>
<pre><code>
  def test(): Int = {
    3
  }
</code></pre>
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